SetFromTest: replaces the last of the `testAddressing()` method
SetFromTest: replaces the last of the `testAddressing()` method

... with a dedicated test to verify that the `Sender` is not overruled when the `$auto` parameter is set to `false`.

PHPMailer/PHPMailer,nawawi/PHPMailer,jimjag/PHPMailer,PHPMailer/PHPMailer,jimjag/PHPMailer,nawawi/PHPMailer